Telegraph switching system



30 Sheets-Sheet 2 C. R. FISHER, JR., ETAL TELEGRAPH SWITCHING SYSTEM March 21, 1961 Filed Jan. 18, 1957 March 2l, 1961 C. R. FISHER, JR., ET AL TELEGRAPH SWITCHING SYSTEM Filed Jan. 18, 1957 REMOTE I 3/07 l PRI/vrn. I

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30 Sheets-Sheet 3 SEND/NG OFF/CE GIRCU/ T L l NE CIRU/ T LINE CIPCU/ T March 2l, 1961 c. R.V FISHER, JR., ETAL 2,976,347

TELEGRAPH SWITCHING SYSTEM Filed Jan. 18, 1957 30 Sheets-Sheet 4 March 21, 1961 c. R. FISHER, JR., ET AL 2,976,347

TELEGRAPH SWITCHING SYSTEM 30 Sheets-Sheet 5 Filed Jan. 18, 1957 L/NE MARKER /32 50 Sheets-Sheet 6 C. R FISHER, JR., ET AL TELEGRAPH SWITCl-IING SYSTEM March 2l, 1961 Filed Jan. 18, 1957 60/PJ "nm- March 21, 1961 c. R. FISHER, JR., ET AL 2,976,347

TELEGRAPH SWITCHING SYSTEM 50 Sheets-Sheet 7 Filed Jan. 18, 1957 L/NE LOC/(OUT and MARKERALLC 775/? /20 7 l?. FIT- 6. n H .I l j A. A. .vllll lllllllillhw'lll \r 4 i v M 1 1, l' l l H um ,.IIL i i HIHH A. :v .vv v H .l @u .1 u lv .l 1 1 i iw m w m 1 3 1 4 I 1 l .I I| u lv@ l: j H l w .l I W Ww l l m -l x||||l||| mIV IW. HH\J.-v/ vf M f 1V m 1 I .w fo f f 3 7 7 n 0 5 7 l March 21, 1961 Filed Jan. 18, 1957 C. R. FISHER, JR., ET AL TELEGRAP H SWITCHING SYSTEM 30 Sheets-Sheet 8 F I6. 8 M a I LQ649/ RECEIVING o COM/140754 TOR /34 March 21 1951 c. R. FISHER, JR., ET AL 2,976,347

TELEGRAPH swITcHING SYSTEM 30 Sheets-Sheet 9 Filed Jan. 18, 1957 RE CORDE R-/J 6 TRANSM/TTER Mal'Ch 21, 1951 c. R. FISHER, JR., ETAL 2,976,347

TELEGRAPH SWITCHING SYSTEM loo/s 020 L/NK MARKER -202 March 21, 1961 c. R. FISHER, JR., ET AL 2,976,347

TELEGRAPH swITcHING SYSTEM Filed Jan. 18, 1957 so sheets-sheet 11 3, w my w M m L n IMM I iWHTIlIlwf Dn 4 A 7L m E MM M C M u. K un 2 HH H 2 N DH 0 2 w m m 0 m 7\J u |||||v\H w V 0 L U|l|l| 2 w .p :5 o mm w 30 Sheets-Sheet 12 C. R. FISHER, JR., ET AL TELEGRAPH SWITCHING SYSTEM March 21, 1961 Filed Jan. 18, 1957 R 0| n W ol M HHTVMQ 00o |.O WAN D /.b Mw m W w nrw M o. M 0 a w r 0 RQ. K DH F M T NAM w M s K 0 ai W U. 0

w E .f 9 @L MJ 5 Mw MalCh 21, 1961 c. R. FISHER, JR., ET AL 2,976,347

TELEGRAPH swITcHING SYSTEM Filed Jan. 18, 1957 30 Sheets-Sheet 13 L//VK 0cm/TAN@ 320 ALLUTTER c/RcU/r O 280 I F/G. I3 wf 1 l T: 1 f i Q March 21, 1961 C. R. FISHER, JR., ETAL 2,976,347

TELEGRAPH SWITCHING SYSTEM Filed Jan. 18, 1957 30 Sheets-Sheet 14 FIG. I4

MUL 77V/BRATOR PULSE CL/PP//V` C/RCU/T March 21, 1961 c. R. FISHER, JR., ETAL 2,976,347

TELEGRAPH SWITCHING SYSTEM Filed Jan. 18, 1957 30 Sheets-Sheet 15 TRA/VSM/TT/NG COMMU747`OR-2/4 FIG. l5

March 21, 1961 c. R. FISHER, JR., ET AL 2,976,347

TELEGRAPH SWITCHING SYSTEM Filed Jan. 18, 1957 30 Sheets-Sheet 16 TRNSM/TW/VG COM/W072i TOR -2/4 March 21, 1961 c. R. FISHER, JR., ET Ax. 2,976,347

TELEGRAPH SWITCHING SYSTEM Filed Jan. 18, 1957 30 Sheets-Sheet 17 Iva/500 AMPLIFIER TRA/N INFORM/47' ION RECORDER C/RCU/ T March 21, 1961 c. R. FISHER, JR., ETAL 2,976,347

TELEGRAPH swITcHING SYSTEM 30 Sheets-Sheet 18 Filed Jan. 18, 1957 CONNECTOR L//VK-Z/Z March 21, 1961 c. R. FISHER, JR., ET AL 2,976,347

TELEGRAPH SWITCHING SYSTEM Filed Jan. 18, 1957 30 Sheets-Sheet 19 096/ o Jaan l (,898 k2099 2097 M899 T/,go/ [,998 60N/VECTOR L/N/f-z/z l /902 ,WQQZL @if www To O I H6. /9 

